Auxin triggers the acidification of cell walls that results in rapid growth, but also stimulates sustained, long-term cell elongation. What best explains how auxin brings about this dual growth response?
A)Auxin binds to different receptors in different cells.
B)Different concentrations of auxin have different effects.
C)Auxin causes second messengers to activate both proton pumps and certain genes.
D)The dual effects are due to two different auxins.
E)Other antagonistic hormones modify auxin's effects.

Question

Quizplus · Accepted Answer

Auxin triggers the activation of certain genes that promote sustained long-term cell elongation, but also activates proton pumps that result in rapid growth through acidification of cell walls. This dual effect is brought about through the activation of second messengers by auxin.

Auxin Triggers the Acidification of Cell Walls That Results in Rapid